Home / 1,019,136.09-1,528,707.78-309,170.28

Finding the Fourth Proportional to 1,019,136.09, 1,528,707.78 and 309,170.28

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Solution

The fourth proportional to 1,019,136.09, 1,528,707.78 and 309,170.28 is: 463,756.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,136.09 : 1,528,707.78 = 309,170.28 : x
  2. Step 2: Convert to fraction form
    1,019,136.09/1,528,707.78 = 309,170.28/x
  3. Step 3: Cross multiply
    1,019,136.09x = 1,528,707.78 × 309,170.28
  4. Step 4: Simplify right side
    1,019,136.09x = 472,631,012,380.78
  5. Step 5: Solve for x
    x = 472,631,012,380.78/1,019,136.09
  6. Step 6: Final answer
    x = 463,756.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.